Research has shown that the goji berry can improve vision. This is because it contains Beta-carotene in a highly biologically active form which is readily utilized by the body.

The berry is said to contain 2500 mg of Vitamin C per 100 grams of fruit, making it one of the world's richest sources of Vitamin C. It is rated at number 1 on the ORAC scale (Oxygen Radical Absorbance Capacity), which measures the antioxidant level in foods.